Hi
I am working on a BMW 635 csi '79
I am going full sequential ignition and injection in the future but for now wasted spark is OK.
All hardware is ready now only camsync not. For now I want to run wasted spark using COPs. But the inject and ignition outputs are a mystery for me.
Q I read I need to configure ign_dualout but I cant find where??
A I asssume you are running the latest released firmware/megatune package ? If not, get it from [here] (unzip and run megatune) then if you take a look at settings -> ignition settings, you'll find the option "Dual output mode"; enable that. After that set up the ignition channels in settings -> Ignition outputs dual setting screen. - DB\n
global.h: uint8_t ign_out; // EDIS:0x0? dummy: 0x7? disable:0xff bit1: ign_dual_out bit0: invertout
After setting it, you can verify in the mcd dump that ign_out=72 (not 70, that is normal dummy-ignition). Don't forget to wire the ignition-outputs sufficiently: the paired outputs must be neighbor ign-channel numbers such as 1 and 0 (or 7 and 6, etc...).
I'm now testing the ignition coils and al work well when using the keyboard command mdnxx, I get a 2 nice sparks (thanks DB) for the 3 cell numbers. but when I crank the engine nothing happens even the spark advance in megatune stays red ad the background en says -1.7 degrees
Q What is wrong please see my config
A I guess you dont see rpm while cranking either (or irratic rpm numbers) it seems you have your trigger tooth and another trigger tooth swapped in config. Since you have a 60-2 on a 6 cylinder, another trigger tooth should be 60 / 3 = 20 (14 hex) trigger tooth should be adjusted so that ign_tdc_delay is around 60 degrees. (6 is usually a good starting point)
The input triggers: original 60-2 wheel (BMW e34 ’90)
Camsync: [Hall-Effect Vane sensor]
Camsync sensor position with the info on GenBoard/Manual/InputTriggerCamSync
I made the following drawing to figure out where the camsync must be placed
So if i turn the crankshaft to 150 degrees before TDC of cilinder 1 the Hall sensor mounted on the camshaft should give a reset puls.
Please correct me if I'm wrong
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